화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.29, No.6, 823-829, June, 2012
DOI10.1007/s11814-011-0252-9  Export Citation
Preparation of environmental-friendly lime paints from hydrated lime and hydrated light burned dolomite
Dae Ju Hwang1, 2, Young Hwan Yu1, Seung Kwan Lee1, Moon Kwan Choi1, Kye Hong Cho1, Ji Whwan Ahn3, Choon Han4, †, and Jong Dae Lee2
  • 1Korea Institute of Limestone and Advanced Materials, 18-1, Udeok-gil, Maepo-up, danyang-gun, Chungbuk 395-903, Korea
  • 2Department of Chemical Engineering, Chungbuk National University, 410, Sungong-ro, Heungduk-gu Chung-ju, Chungbuk 361-763, Korea
  • 3Mineral Processing Department, Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources, 92-Science-ro, Yuseong-gu, Daejeon 305-350, Korea
  • 4Department of Chemical Engineering, Kwangwoon University, 447-1, Wolgye-dong, Nowon-gu, Seoul 139-701, Korea
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Environment-friendly lime paints were prepared from 38 wt% slurries of hydrated lime (Ca(OH)2) and hydrated light burned dolomite (Ca(OH)2·Mg(OH)2). These materials and the resulting paints’ antibacterial and antimold properties were investigated. The hydrated lime used in this study contained 97 wt% Ca(OH)2, which implies a 71.85 wt% equivalence of CaO. This 71.85 wt% CaO content was responsible for the antibacterial and anti-mold characteristics. The antibacterial and anti-mold characteristics of the hydrated light burned dolomite were attributed to its 56 wt% CaO and 44 wt% MgO contents. The antibacterial-reducing activities of 38 wt% hydrated lime and hydrated light burned dolomite slurries were found to be 99%. Their anti-mold activities against mixed strains were outstanding. Lime paints produced from the slurries and various additives also showed 99% antibacterial activity and outstanding anti-mold activity. The paints’ low total volatile organic compounds (TVOCs) releases were graded as excellent. Their formaldehyde (HCHO) releases were classed as best through excellent, indicating their suitability as environment-friendly building materials.
Keywords:Hydrated Lime;Hydrated Light Burned Dolomite;Anti-bacterial;Anti-mold;Total Volatile Organic Compounds/Formaldehyde
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